{extend name="index-layout" /}{block name="content"}<div class="banner">    <div class="wrapper">        <h2 class="wow fadeInUp">开发文档下载</h2>        <p class="wow fadeInUp" data-wow-delay='.5s'>-Document download -</p>    </div></div><div class="sdk">    <div class="wrapper">        <ul class="clear">            <li>                <div class="txt">                    统一下单接口文档                </div>                <div class="img">                    <img src="__INDEX__/picture/img_51.png"/>                </div>                <div class="btn">                    <a href="/uploads/document/unifiedorder.zip">下载</a>                </div>            </li>        </ul>    </div></div>{/block}